Translation of the verse 28 from Surah Al-Qamar : Number of verses 55 - - page 530 - Part 27.
And inform them that the water is to be shared between (her and) them. Each one's right to drink being established (by turns).
And inform them that the water is shared between them, each [day of] drink attended [by turn].
(54:28) Let them know that the water should be divided between them and the she-camel, each availing their turn.' *19
*19) This explains the verse: "We are sending the she-camel as a trial for them." The trial was that suddenly a she-camel was produced before them and they were told that one day she would drink the water aII by herself and the next. day they would be allowed to have water for themselves and their cattle. On the day of her turn neither would any of them himself come to any of the springs and wells to take water nor bring his cattle for watering. This challenge was given on behalf of the person about whom they themselves admitted that he had no army and no hosts to support him.